TheLittleThingsPC

My business is a play cafe. Families come in for 2 hours and play on indoor toddler equipment and we have a full coffee bar. The pricing is set up for 1 free adult with paying child. But there are instances where there will be 2 adults with one child, so one of the adults would pay, but pay less than the child cost. So for a "class" I'd like to be able to "purchase" a Qty x for adults and Qty y for child. Is this possible?!?!?